A polyester resin composition including an ionic liquid that can dissolve an acid component monomer and/or oligomers of a polyester terephthalate, and a copper element that exhibits a reduced amount of production of the acid component monomer and/or oligomers of the polyester. Examples of the ionic liquid include 1-butyl-3-methylimidazolium acetate, 1-butyl-3-methylimidazolium chloride and tetrabutyl ammonium bromide. In one polyester resin composition, the surface roughness Ra of a capture plate is less than 0.150 μm, as measured when a sample of the polyester resin composition is melt at 300° C. for 60 minutes under a nitrogen atmosphere, quickly cooled and thermally treated at 220° C. for 8 hours to form scattered products which are then attached to the capture plate and a gelation ratio after a 6-hour melting treatment at 300° C. under an atmosphere with an oxygen concentration of 1% is 5% or less.
一种聚酯
树脂组合物,包括一种能溶解
对苯二甲酸聚酯的酸组分单体和/或低聚物的
离子液体,以及一种能减少聚酯的酸组分单体和/或低聚物生成量的
铜元素。
离子液体的例子包括 1-丁基-3-甲基
咪唑鎓
醋酸盐、1-丁基-3-甲基
咪唑鎓
氯化物和
四丁基溴化铵。在一种聚酯
树脂组合物中,捕获板的表面粗糙度 Ra 小于 0.150 μm,这是在氮气环境下,将聚酯
树脂组合物样品在 300° C 下熔融 60 分钟,然后快速冷却,并在 220° C 下热处理 8 小时,形成分散产物,然后将其附着在捕获板上,在
氧气浓度为 1%的环境下,在 300° C 下熔融处理 6 小时后的凝胶化率为 5%或更低时测得的。